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After visiting Colorado in the mid-1860s, Hill recognized that miners in the region needed a new extraction method to separate metals from ore. He turned to smelting and secured investors to build a smelter in Black Hawk (pictured here), which opened in 1868 as Colorado's first successful smelter. It revitalized the territory's mining industry.
Location:
Black Hawk
Place:
Gilpin County
Map:
Date:
1867–68
Copyright Notes:
Copyright restrictions applying to use or reproduction of this image available from the Western History and Genealogy Dept., Denver Public Library, at photosales@denverlibrary.org.
(Reproduction available digitally only)